Combined anti-theft double-end zipper with hanging rope and pull tab

Abstract

The utility model relates to the technical field of zippers, in particular to a combined anti-theft double-head zipper with a hanging rope and a pull tab, which comprises a zipper tape and two pull heads arranged on the zipper tape, a pull tab is arranged on a pull nose of each pull head, a pull tab is arranged on one pull tab, and the pull tab is connected with the other pull tab for locking. When the pull tab structure is used, locking can be completed only by penetrating the injection molding part in the pull tab structure through the through hole of the other pull tab, the structure is simple, operation is easy and convenient, complex design and manufacturing processes and manufacturing materials of the pull tabs do not need to be considered, research cost is greatly reduced, and then production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, specifically a combined anti-theft hanging rope loop double-headed zipper. Background Technology

[0002] Zippers, as a traditional connecting accessory, come in many varieties and have a wide range of applications. Double-ended zippers are especially prevalent in clothing, bags, tents, and other items. They allow users to open the zipper by pulling either one end or both ends simultaneously, and the opening and closing points can be freely chosen. With technological advancements and varying consumer demands, double-ended zippers now feature latches on the zipper pulls to lock the two ends in place, preventing thieves from easily opening the zipper and stealing valuables in crowded public places.

[0003] Currently, there are various types of double-headed zippers with interlocking functions on the market. For example, Chinese utility model patent CN210901682U describes a zipper with a first and a second zipper head connected to a first and a second pull tab, respectively. The first pull tab has a first latch, and the second pull tab has a second latch. When the first and second zipper heads are pulled together, the first and second latches engage to lock the first and second pull tabs together. Another example is Chinese utility model patent CN203575771U, which describes an anti-theft rope buckle zipper, including a first and a second pull tab. Both the first and second pull tabs include a zipper head, a rope buckle, and a tag. The rope buckle passes through a hanging hole on the zipper head, and both ends of the rope buckle are attached to the tag. The first pull tab has a sliding lock with a through hole in the middle, through which the rope buckle passes.

[0004] Both types of zippers mentioned above require alloy pull tabs or alloy locking fasteners for fastening. The alloy fastening structure imposes limitations on surface electroplating and spraying, and there is a probability of wear and paint chipping during the fastening process. Due to frequent opening, closing, and pulling, the alloy fastening part may loosen or become damaged. Furthermore, the design and manufacturing process of alloy fastening structures is relatively complex, requiring higher levels of craftsmanship and material costs. Utility Model Content

[0005] The purpose of this utility model is to provide a combined anti-theft lanyard loop double-headed zipper to solve the limitations of the existing double-headed zipper's alloy buckle structure surface electroplating and spraying structure, the probability of wear and paint peeling during the buckling process, and the relatively complex design and manufacturing process, which requires a high level of craftsmanship and material costs.

[0006] The present invention adopts the following technical solution:

[0007] A combination anti-theft lanyard loop double-headed zipper includes a zipper belt and two zipper heads (10) set on the zipper belt. Each of the two zipper heads (10) is provided with a zipper nose (20), and each of the two zipper noses (20) is provided with a pull tab (30). One of the pull tabs (30) is provided with a pull loop, and the pull loop is connected to the other pull tab (30) for locking.

[0008] Furthermore, the pull loop includes a hanging rope (40) and an injection molded part (50), one end of the hanging rope (40) is connected to the pull tab (30), and the other end is connected to the injection molded part (50).

[0009] Furthermore, the two ends of the hanging rope (40) are integrally injection molded with the injection molded part (50) to form a closed loop hanging rope (40).

[0010] Furthermore, the hanging rope (40) is perpendicular to the injection molded part (50) in the straightened state.

[0011] Furthermore, the injection molded part (50) is provided with two parallel circular holes through which the hanging rope (40) can pass. The two ends of the hanging rope (40) pass through the circular holes respectively and are connected to form a closed loop hanging rope (40).

[0012] Furthermore, the injection molded part (50) slides freely on the hanging rope (40).

[0013] Furthermore, the pull tab (30) is an alloy sheet with at least two through holes.

[0014] Furthermore, the pull loop passes through two through holes on the pull tab (30) and is fixed to the pull tab (30).

[0015] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0016] 1. This utility model replaces the traditional alloy fastening structure with a cord loop structure. One end of the cord is fixed to one of the pull tabs, and the other end is connected to the injection-molded part, thus forming a loop structure. During fixing, the injection-molded part only needs to pass through the pull tab hole of the other pull tab to form a "bolt" structure. Compared with the alloy fastening structure on existing pull tabs, this eliminates the complex design and manufacturing process, eliminates the probability of wear and paint peeling during use, and avoids the limitations of alloy surface electroplating and spraying, reducing the R&D and production costs of pull tabs and lowering the production cost of zippers.

[0017] 2. The hanging cord loop structure of this utility model has a variety of different shapes, which enhances its product competitiveness. The hanging cord and the injection-molded part are vertically integrated and formed into a "T" shape or a "+" shape; the "+" shape structure can be further tightened to make the double-headed zipper more stable. Attached Figure Description

[0018] Figure 1 This is a top view of the pull head structure of Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the two zipper heads separated in Embodiment 1 of this utility model.

[0020] Figure 3 This is a schematic diagram of the locking of two pull heads in Embodiment 1 of this utility model.

[0021] Figure 4 This is a schematic diagram of the two zipper heads separated in Embodiment 2 of this utility model.

[0022] The parts labeled in the diagram are: pull head 10, pull nose 20, pull tab 30, first through hole 31, second through hole 32, hanging rope 40, and injection molded part 50. Detailed Implementation

[0023] The specific implementation of the present invention will now be described with reference to the accompanying drawings.

[0024] Example 1

[0025] Reference Figures 1 to 3 A combined anti-theft lanyard loop double-ended zipper includes a zipper tape and two oppositely arranged zipper pulls 10 on the zipper tape. Each zipper pull 10 has two pull noses 20, and each pull nose 20 is connected to an alloy pull tab 30 with at least two through holes. (See reference...) Figure 1 The pull tab 30 is narrower at the top and wider at the bottom, and has a first through hole 31 and a second through hole 32 from top to bottom. The first through hole 31 is a square through hole with rounded corners, and it is interlocked with the pull lug 20 on the pull head 10. The second through hole 32 is a circular through hole. The second through hole 32 on one of the pull tabs 30 is used to connect the locking pull loop, and the pull loop passes through the second through hole 32 on the other pull tab to complete the locking operation.

[0026] Reference Figure 2The pull loop includes a hanging cord 40 and a cylindrical injection-molded part 50. Both ends of the hanging cord 40 are integrally injection-molded with the injection-molded part 50, forming a closed loop. When straightened, the hanging cord 40 is perpendicular to the injection-molded part 50. One end of the hanging cord 40 first passes through the first through hole 31 on the pull tab 30, and then passes through the second through hole 32 in the opposite direction. At this point, the portion of the hanging cord 40 passing through the second through hole 32 forms a closed loop with the pull tab 30. Passing the injection-molded part 50 through this closed loop tightens the hanging cord 40, thus fixing the pull loop to the pull tab 30. Specifically, the remaining size of the first through hole 31 after connecting to the pull nose 20 is greater than twice the diameter of the hanging cord 40; the diameter of the second through hole 32 is greater than the diameter of the injection-molded part 50 plus twice the diameter of the hanging cord 40; and the length of the injection-molded part 50 is greater than the diameter of the second through hole 32.

[0027] Reference Figure 3 In use, pull the two zipper heads 10 close to the zipper tape via the pull tabs 30, manually adjust the injection molded part 50 and the hanging rope 40 to be parallel, and then pass them together through the second through hole 32 on the other pull tab 30 in a direction perpendicular to the second through hole 32. After passing through the second through hole 32, straighten the injection molded part 50 and pull the part of the hanging rope 40 that has passed through the second through hole 32 to fix the two zipper heads 10 together. Because the length of the injection molded part 50 is greater than the diameter of the second through hole 32, the injection molded part 50 will not slip backward.

[0028] Example 2

[0029] This embodiment is basically the same in structure as Embodiment 1, and refers to... Figure 4 The difference lies in that the injection-molded part 50 has two parallel circular holes for the hanging rope 40 to pass through. The two ends of the hanging rope 40 pass through the two circular holes on the injection-molded part 50 respectively, and are joined end-to-end to form a closed loop. Simultaneously, the injection-molded part 50 can slide freely on the hanging rope 40. The fixing method and usage of the pull tab are the same as in Embodiment 1. After the injection-molded part 50 passes through the second through hole 32 and returns to its original position, pulling the portion of the hanging rope 40 that passes through the second through hole 32 pushes the injection-molded part 50 closer to the pull tab 30, making the fixing effect more stable.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A combined anti-theft hanging rope loop double-headed zipper, characterized in that: It includes a zipper belt and two zipper heads (10) provided on the zipper belt. Each of the two zipper heads (10) is provided with a zipper nose (20) and each of the two zipper noses (20) is provided with a pull tab (30). One of the pull tabs (30) is provided with a pull loop, and the pull loop is connected to the other pull tab (30) for locking.

2. The combined anti-theft hanging rope loop double-headed zipper according to claim 1, characterized in that: The pull tab includes a hanging cord (40) and an injection molded part (50). One end of the hanging cord (40) is connected to the pull tab (30), and the other end is connected to the injection molded part (50).

3. A combined anti-theft hanging rope loop double-headed zipper according to claim 2, characterized in that: The two ends of the hanging rope (40) are integrally injection molded with the injection molded part (50) to form a closed loop hanging rope (40).

4. A combined anti-theft hanging rope loop double-headed zipper according to claim 3, characterized in that: The hanging rope (40) is perpendicular to the injection molded part (50) when it is straightened.

5. A combined anti-theft hanging rope loop double-headed zipper according to claim 2, characterized in that: The injection molded part (50) has two parallel circular holes through which a hanging rope (40) can pass. The two ends of the hanging rope (40) pass through the circular holes and are connected to form a closed loop hanging rope (40).

6. A combined anti-theft hanging rope loop double-headed zipper according to claim 5, characterized in that: The injection molded part (50) slides freely on the hanging rope (40).

7. A combined anti-theft hanging rope loop double-headed zipper according to claim 1, characterized in that: The pull tab (30) is an alloy sheet with at least two through holes.

8. A combined anti-theft hanging rope loop double-headed zipper according to claim 7, characterized in that: The pull loop passes through two through holes on the pull tab (30) and is fixed to the pull tab (30).

Images